Answer:
11 shelves.
Divide 96 by 9
96 ÷ 9 = 10.6
Since 10.6 rounds to 11, and it is more than 10, we will need 11 shelves to store the books, since there is no such thing as a half-bookshelf here.
$7.47/3= $2.49 per yard
$2.49 *2= $4.98
$4.98+$7.47= $12.45
Or $2.49 per yard times 5 yards equals $12.45
Answer:2±√422
Step-by-step explanation:
x²-4x-9=29
x²-4x-9-29=0
x²-4x-38=0
x=(4±√16+1672)/2
x=(4±2√422)/2
x=2±√422
7 (seven) is the Correct answer for sure I am positive
Hope it helps
Answer:
C
Step-by-step explanation:
We can notice the expression is the special product a^2 - b^2, which can be factored into (a + b)(a - b). By correlating the expression with the formula, we can say:
a^2 = 9r^2
-and-
b^2 = 100s^2t^2
Therefore:
a = 3r
-and-
b = 10st
Now we can substitute these values into the factored form, (a + b)(a - b):
(3r + 10st)(3r - 10st)
This is the same as option C, meaning C is the answer.
